Media release: Too many ministers, too little accountability: New report calls for Cabinet overhaul
Wellington (Tuesday, 2 September 2025) - New Zealand has one of the most complex systems of executive government in the developed world. With 81 ministerial portfolios, 28 ministers and 43 departments, we have three times as many portfolios and nearly twice as many departments as comparable countries.
A new report from The New Zealand Initiative, Unscrambling Government: Less Confusion, More Efficiency, argues that this sprawling Cabinet structure makes accountability unclear, drives up costs, and slows solutions to challenges like housing, welfare and climate change.
The scale of the problem is evident in ministries such as the Ministry of Business, Innovation and Employment (MBIE), which reports to 20 different ministers.
Co-author Roger Partridge said this proliferation undermines effective government. He noted that New Zealand’s “ministerial maze means everyone is responsible, but no one is accountable,” and argued that reform is essential for greater accountability, faster decision-making and stronger fiscal discipline.
Key Findings
- International models show it can be done: Comparable countries such as Ireland, Norway and Singapore govern effectively with 15–20 ministers. And Australia’s 1987 reforms show that even a sprawling cabinet can be decisively streamlined – reducing 28 portfolios to 16, creating durable ‘consolidated ministries’.
- Consolidation is essential: New Zealand could reduce its Cabinet sprawl by consolidating portfolios into 15-20 natural policy domains and cutting departments from 43 to around 20.
- Junior ministers, not more portfolios: The report proposes a second tier of junior ministers as in Ireland, Australia and the UK to take on delegated ministerial responsibilities, with ultimate authority remaining with fewer senior, budget-holding Cabinet ministers.
The report concludes that reform is not just about tidiness. A smaller, more focused Cabinet would mean clearer accountability, fewer veto points, and more coherent leadership on complex issues that currently span multiple ministers.
In his foreword, former Treasury Secretary Dr Murray Horn CNZM warns that the current Cabinet structure “makes almost every aspect of good government harder than it needs to be.”
Roger Partridge will also discuss his report on a webinar with Dr Murray Horn on 2 September at 2:30 pm. You can register for that webinar here.
ENDS
Roger Partridge is available for comment. To schedule an interview, please contact:
Jamuel Enriquez, Marketing and Communications Manager
E: jamuel.enriquez@nzinitiative.org.nz
P: 021 022 34451
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About The New Zealand Initiative
The New Zealand Initiative is an evidence-based think tank and research institute contributing to public policy discussion.
Supported by the nation’s leading visionaries, business leaders and political thinkers, we are committed to making New Zealand a better country for all its citizens with a world-class education system, affordable housing, a healthy environment, sound public finances and a stable currency.
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New Zealand’s Cabinet system is a maze of ministers, portfolios and departments. This sprawling structure blurs accountability and complicates decisions across government. The Initiative’s analysis shows how it could be simplified by consolidating portfolios and introducing junior ministers. See the current system compared with a proposed realigned model in the charts below.
